Question about Roskomnadzor

Hi everyone, I have a question. I’m from Russia, and the privacy situation here is not the best. Every year the government introduces new measures and restrictions, one of which is the Register of Organizers and Distributors of Information. Its essence is that the so-called organizers of information dissemination (messengers, any sites and applications with the option of sending messages) provide contact information for entering into the register, thereby confirming their consent to cooperate with the Russian authorities and transfer the required user data on the first request.
In the beginning, only Russian apps and sites were included in it, and there was a loud scandal related to Telegram. Now foreign services focused on privacy, such as Conversations and Mailbox. org are being added to the registry.
What is the legal status of entering foreign services in this register? Should we pay attention to this and warn users from Russia?

https://mailbox.org/en/post/roskomnadzor-withdraws-petition-to-block-access-to-mailbox-org-in-russia